CN114566310B - Light and insulating cable for new energy automobile and preparation method thereof - Google Patents
Light and insulating cable for new energy automobile and preparation method thereof Download PDFInfo
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- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 26
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- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 23
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 19
- 238000009713 electroplating Methods 0.000 claims abstract description 14
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 12
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroplating Methods And Accessories (AREA)
- Insulated Conductors (AREA)
Abstract
The application relates to the field of cables, and particularly discloses a light and insulating cable for a new energy automobile, which comprises a cable core and an insulating coating, wherein the cable core consists of a plurality of wire cores, the wire cores are made of aluminum alloy materials, the insulating coating is coated outside the cable core, and the insulating coating is a layer which grows on the surface of the wire cores in situ and comprises alpha-Al 2 O 3 、γ‑Al 2 O 3 The aluminum alloy material is a composite material of Al-rare earth elements, the rare earth elements comprise La and Ce, and the La and Ce respectively account for 0.12-0.19% and 0.16-0.21% of the aluminum alloy material by mass percent. The application also discloses a preparation method of the cable, which comprises the following steps: (1) batching; (2) smelting; (3) forging; (4) preparing a wire core; (5) treatment of the cleaning liquid; (6) electroplating. The application has the effect of enabling the insulating coating to be better attached to the outer surface of the wire.
Description
Technical Field
The application relates to the field of cables, in particular to a light-weight and insulating cable for a new energy automobile and a preparation method thereof.
Background
At present, with the popularization of new energy automobiles, the demand for cables for new energy automobiles is further increased. The cable for new energy automobile is generally a cable similar to rope formed by twisting several or several groups of wires, wherein each group of wires is insulated from each other and is usually twisted around a center, and the whole outer surface of the cable is covered with an insulating sheath for connecting circuits, electric appliances and the like. Since the insulating sheath of the cable is mainly made of rubber material, the insulating sheath made of rubber material tends to be thick, so that the weight of the cable is increased, and therefore, an insulating coating is generally directly coated on the outer surface of the wire. However, the insulating coating is adopted to replace the insulating sheath, and the phenomenon of poor adhesion between the insulating coating and the outer surface of the wire is easy to occur, so that the service life of the cable is shortened. Thus, there is still room for improvement.
Disclosure of Invention
In order to enable the insulating coating to be better attached to the outer surface of the lead, the application provides a light-weight insulating cable for a new energy automobile and a preparation method thereof.
On one hand, the application provides a light and insulating cable for a new energy automobile, which adopts the following technical scheme:
the utility model provides a light, insulating type cable for new energy automobile, includes cable core and insulating cladding material, the cable core comprises a plurality of sinle silk, the sinle silk is made by aluminum alloy material, insulating cladding material coats in the outside of cable core, insulating cladding material is the one deck that grows on the surface normal position of line core and includes alpha-Al 2 O 3 、γ-Al 2 O 3 The aluminum alloy material is a composite material of Al-rare earth elements, the rare earth elements comprise La and Ce, and the La and Ce respectively account for 0.12-0.19% and 0.16-0.21% of the aluminum alloy material by mass percent.
By adopting the technical scheme, the aluminum alloy material takes aluminum as a matrix and is compounded with special rare earth elements (La and Ce) in a specific proportion, so that the cable has the light and soft effect, and the cable core adopts alpha-Al 2 O 3 gamma-Al 2 O 3 Plating has good insulating effect, replaces the traditional thick insulating sheath, further lightens the weight of the cable, and simultaneously is also beneficial to improving the flexibility of the aluminum alloy wire core, so that the aluminum alloy wire core is better attached to the insulating coating, and the insulating coating is not easy to separate from the wire core, thereby being beneficial to prolonging the service life of the cable.
Preferably, the rare earth element further comprises 0.14% -0.22% Pr and 0.13% -0.19% Nd.
Through adopting above-mentioned technical scheme, adopt Pr and Nd of specific proportion to mutually support, be favorable to alleviateing the weight of cable, strengthened the mechanical strength and the corrosion resistance of cable to, still make insulating coating be difficult for taking off from the surface of cable core, with this life who prolongs the cable. In addition, the conductivity of the wire core is improved, so that the cable has excellent mechanical property and electrical property.
Preferably, the mass ratio of La to Ce in the aluminum alloy material is 2:1.
By adopting the technical scheme, the aluminum alloy material prepared by adopting the substances with the specific proportion ensures that the cable core has stronger toughness and conductivity, thereby improving the performance of the cable.
In a second aspect, the application provides a method for preparing a light-weight insulated cable for a new energy automobile, which comprises the following steps of
Is characterized by comprising the following technical scheme:
a preparation method of a light and insulating cable for a new energy automobile comprises the following steps:
(1) And (3) batching: weighing Al, la, ce, pr and Nd serving as raw materials of the wire cores according to a formula;
(2) Smelting: adding raw materials into a smelting furnace, heating and melting, and smelting the raw materials to form an alloy solution;
(3) Forging: continuously casting, continuously binding and wiredrawing the alloy solution to obtain a blank, and forging and refining the blank after wiredrawing by using a forging mode;
(4) Preparing a wire core: twisting the refined wool into wire cores, and twisting a plurality of wire cores to obtain a cable core;
(5) And (3) treating cleaning liquid: the cleaning solution comprises the following raw materials in parts by mass: 2-5 parts of amino trimethylene phosphine, 6-9 parts of polyethylene glycol, 3-7 parts of polyethylene glycol oleate and 40-84 parts of water, and immersing the cable core into a cleaning solution for treatment;
(6) Electroplating: and (3) placing the cable core coated with the cleaning solution into electrolyte for chemical plating, so that an insulating coating is plated on the outer surface of the cable core, wherein the electrolyte is prepared from phosphoric acid aqueous solution, citric acid and ethylenediamine.
Through adopting above-mentioned technical scheme, the washing liquid adopts amino trimethylene phosphine, polyethylene glycol and oleic acid polyethylene glycol ester to constitute, is favorable to getting rid of the greasy dirt on cable core surface to, can also form stable chelate with the metal bond, be favorable to reinforcing the cohesion between cable core and the insulating cladding layer, the surface of protection cable core, make the cable core after wasing be difficult to further by corroding, so that the laminating degree between insulating cladding layer and the cable core improves, thereby make the insulating cladding layer be difficult to take place to drop.
In addition, research and development personnel also find unexpectedly that after the cable core is treated by the cleaning liquid, the cable core is placed into the electrolyte for chemical plating, the exposed surface of the insulating coating coated on the surface of the cable core cannot be adhered to the surface of another metal, the insulating coating is bright and smooth, the covering power is good, the insulating coating is uniformly coated on the surface of the cable core, the adhesion between the insulating coating and the cable core is tight, and then the insulating coating is not easy to fall off from the surface of the cable core.
Preferably, the cleaning solution in the step (5) further comprises the following raw materials in parts by weight:
8-14 parts of dimethylformamide.
By adopting the technical scheme, the dimethylformamide is added into the cleaning solution, so that the conductivity of the cable core is facilitated, and the prepared cable has good flexibility and is not easy to wind.
Preferably, the cleaning solution in the step (5) comprises the following raw materials in parts by weight: 3 parts of amino trimethylene phosphine, 8 parts of polyethylene glycol, 6 parts of polyethylene glycol oleate and 55 parts of water. Through adopting above-mentioned technical scheme, the washing liquid adopts above-mentioned specific parts by weight's material, not only is favorable to getting rid of the greasy dirt on cable core surface better, and then makes the surface of cable core be difficult to take place the phenomenon of corruption to make the cable core after wasing difficult further by corruption.
Preferably, the temperature of the electrolyte in the step (5) is 30-35 ℃, and the electroplating time is 5-10min.
Through adopting above-mentioned technical scheme, adjust the temperature of electroplating, electroplating time, be favorable to improving insulating coating's mechanical strength and corrosion resistance, simultaneously, still make insulating coating be difficult to drop from the surface of cable core, be favorable to improving the life of cable.
Preferably, in the step (2), the temperature of the melting furnace is 1910-1980 ℃.
Through adopting above-mentioned technical scheme, through the temperature that controls the raw materials melting in certain scope, be favorable to improving the mechanical strength and the pliability of sinle silk for the sinle silk has good mechanical properties, and then makes the life extension of cable.
In summary, the present application includes at least one of the following beneficial technical effects:
1. aluminum is used as a matrix through an aluminum alloy material, and is compounded with specific rare earth elements (La and Ce) in a specific proportion, and the cable core adopts alpha-Al 2 O 3 gamma-Al 2 O 3 Plating, so that the cable has the effects of light weight and softness; the flexibility of the aluminum alloy wire core is improved, so that the insulation coating is not easy to separate from the wire core, and the service life of the cable is prolonged.
2. By adopting Pr and Nd with specific proportion to be matched with each other, the quality of the cable is reduced, the mechanical strength of the cable is improved, the insulating coating is not easy to drop off from the outer surface of the cable core, and the service life of the cable is prolonged.
3. The cable prepared by the method disclosed by the application is not only beneficial to removing oil stains on the surface of the cable core, but also beneficial to improving the binding force between the cable core and the insulating coating, so that the cable core treated by the cleaning solution is not easy to further corrode.
Detailed Description
The present application will be described in further detail with reference to examples.
The sources of the raw materials used in the following examples and comparative examples are shown in Table 1.
TABLE 1
| Amino trimethylene phosphine | The product number sold by Shandong Zhonghua chemical industry technology Co., ltd is ZRHH-203 |
| Polyethylene glycol | The product number sold by Guangzhou commercial great chemical engineering Co., ltd is 3 |
| Polyethylene glycol oleate | The product number sold by Jiangsu province sea-An petrochemical plant is 5656 |
Example 1
The embodiment discloses a light and insulating cable for new energy automobiles, which comprises a cable core and an insulating coating, wherein the cable core consists of four wire cores, the wire cores are made of aluminum alloy materials, the insulating coating is coated on the outer surface of the cable core, and the insulating coating is a layer which grows on the surface of the wire core in situ and comprises alpha-Al 2 O 3 、γ-Al 2 O 3 The aluminum alloy material is a composite material of Al-rare earth elements, the rare earth elements comprise La and Ce, and the dosages of La and Ce are shown in Table 2.
The embodiment discloses a preparation method of a light and insulating cable for a new energy automobile, which comprises the following steps:
(1) And (3) batching: weighing Al, la and Ce as raw materials of the wire cores according to the formula in the table 2;
(2) Smelting: adding raw materials into a melting furnace, heating and melting, controlling the temperature of the melting furnace to be 1910 ℃, and melting the raw materials to form alloy solution;
(3) Forging: continuously casting, continuously binding and wiredrawing the alloy solution to obtain a blank, and forging and refining the blank after wiredrawing by using a forging mode;
(4) Preparing a wire core: twisting the refined wool into wire cores, and twisting a plurality of wire cores to obtain a cable core;
(5) And (3) treating cleaning liquid: the cleaning solution comprises the following raw materials: amino trimethylene phosphine, polyethylene glycol oleate and water (specific amounts are shown in table 2), immersing the cable core in a cleaning solution;
(6) Electroplating: and (3) placing the cable core coated with the cleaning solution into an electrolyte for chemical plating to plate an insulating coating (an aluminum oxide film) on the outer surface of the cable core, thus obtaining the cable, wherein the electrolyte is prepared from an aqueous phosphoric acid solution, citric acid and ethylenediamine (the specific dosage is shown in table 2), the temperature of the electrolyte is 30 ℃, the electroplating speed is 12 meters per hour, and the electroplating time is 5 minutes.
Example 2
The difference from example 1 is that: rare earth elements including La and Ce, the amounts of La and Ce are shown in Table 2; in the step (2), raw materials are added into a melting furnace for heating and melting, and the temperature of the melting furnace is controlled to be 1980 ℃; the cleaning solution in the step (5) comprises the following raw materials: amino trimethylene phosphine, polyethylene glycol oleate and water (see table 2 for specific amounts); the temperature of the electrolyte in the step (6) is 35 ℃, the electroplating speed is 12 meters per hour, and the electroplating time is 10min.
Example 3
The difference from example 1 is that: rare earth elements including La and Ce, the amounts of La and Ce are shown in Table 2; in the step (2), raw materials are added into a melting furnace for heating and melting, and the temperature of the melting furnace is controlled to be 1950 ℃; the cleaning solution in the step (5) comprises the following raw materials: amino trimethylene phosphine, polyethylene glycol oleate and water (see table 2 for specific amounts); the temperature of the electrolyte in the step (6) is 32 ℃, the electroplating speed is 12 meters per hour, and the electroplating time is 8 minutes.
TABLE 2
Example 4
The difference from example 3 is that: the rare earth element also comprises Pr and Nd, and the Pr and Nd respectively account for 0.14 percent and 0.13 percent of the aluminum alloy material by mass percent.
Example 5
The difference from example 3 is that: the rare earth element also comprises Pr and Nd, and the Pr and Nd respectively account for 0.22 percent and 0.19 percent of the aluminum alloy material by mass.
Example 6
The difference from example 5 is that: equal amounts of Pr were substituted for Nd.
Example 7
The difference from example 5 is that: equal amounts of Nd were used instead of Pr.
Example 8
The difference from example 3 is that: equivalent water is used to replace polyethylene glycol, amino trimethylene phosphine and polyethylene glycol oleate.
Example 9
The difference from example 3 is that: the polyethylene glycol was replaced with an equivalent amount of polyaspartic acid.
Example 10
The difference from example 3 is that: the cleaning solution in the step (5) also comprises 8 parts of dimethylformamide.
Example 11
The difference from example 3 is that: the cleaning solution in the step (5) also comprises 14 parts of dimethylformamide.
Example 12
The difference from example 3 is that: the rare earth element also comprises Pr and Nd, and the Pr and Nd respectively account for 0.22 percent and 0.19 percent of the aluminum alloy material by mass; the cleaning solution in the step (5) also comprises 8 parts of dimethylformamide; the mass ratio of La to Ce is 2:1.
Comparative example 1
The difference from example 3 is that: equal amounts of Tb are used for replacing La and Ce.
Comparative example 2
The difference from example 3 is that: ce was replaced with an equal amount of Tb.
Comparative example 3
The difference from example 3 is that: equal amounts of Tb were substituted for La.
Comparative example 4
The difference from example 3 is that: the aluminum alloy was replaced with an equal amount of copper.
Comparative example 5
The difference from example 3 is that: the rare earth elements comprise La and Ce, and the La and Ce respectively account for 0.29% and 0.08% of the aluminum alloy material by mass.
Comparative example 6
The difference from example 3 is that: the rare earth elements comprise La and Ce, and the La and Ce respectively account for 0.10 percent and 0.31 percent of the aluminum alloy material by mass.
Experiment 1
The toughness of the cables prepared in the above examples and comparative examples is respectively detected according to the winding experiment of 2.10 in GB/T5270-2005, test method for adhesion strength of metal coating layer on metal substrate and adhesion strength of chemical deposition layer, and the lower the winding grade, the better the toughness of the cables is. The specific evaluation grades of the winding grades are shown in table 3.
TABLE 3 Table 3
| Grade | Toughness evaluation |
| 1 | Not wound around |
| 2 | With a little twist |
| 3 | Are wound together and are difficult to separate |
Experiment 2
The test is based on the 2.8 lineation and cross-cut test in GB/T5270-2005, test method for electrodepositing metallic coating layer on metallic matrix and adhesive strength of chemical deposition layer, and the lower the adhesive force rating, the less easy the insulation coating will drop. The specific evaluation grades are shown in Table 4.
TABLE 4 Table 4
| Grade | Evaluation of adhesion |
| 1 | The plating layer has no detachment, peeling and bulge phenomena |
| 2 | The coating layer has no detachment, peeling and slight bulge |
| 3 | The coating layer is not separated but slightly peeled |
| 4 | Some separation, peeling and bulge phenomena of the coating |
Experiment 3
According to GB/T12966-2008 'method for testing aluminum alloy conductivity vortex flow', the electric conductivity (%) of the cable prepared in the embodiment and the comparative example is detected, and the higher the electric conductivity is, the better the electric conductivity of the cable is.
The above experimental data are shown in Table 5.
TABLE 5
According to the data analysis of comparative examples 1 to 4 in Table 5 and example 3, la and Ce are not added to the rare earth element in comparative example 1, ce is not added to the rare earth element in comparative example 2, la is not added to the rare earth element in comparative example 3, the conductivity of comparative examples 1 to 3 is basically similar, the adhesion grade is basically similar, la and Ce are simultaneously added to the rare earth element in example 3, the conductivity of the cable is increased from about 20% to 39%, the adhesion grade is reduced from 3 to 2 in example 3, la and Ce are simultaneously added and are matched with Al, the conductivity of the cable is improved, and the insulating coating has good adhesion, so that the insulating coating is not easy to fall off from the outer surface of the cable core, and the cable has good performance.
According to the comparison of the data in Table 5 between examples 4-7 and example 3, respectively, the rare earth element of example 6 is not added with Pr, the rare earth element of example 7 is not added with Nd, the conductivity of examples 6-7 is basically similar, the adhesion level is the same, pr and Nd are simultaneously added with the rare earth element of examples 4-5, the conductivity is increased from about 39% to about 45%, the adhesion level is reduced from 2 to 1, and the simultaneous addition of Pr and Nd is indicated to be mutually matched, so that the conductive performance of the cable is improved, the insulation coating is better attached to the outer surface of the cable core, and the service life of the cable is prolonged.
According to the comparison of the data in examples 8-9 in Table 5 with the data in example 3, the conductivity of the cable is basically similar without adding the aminotrimethylene phosphine, the polyethylene glycol and the polyethylene glycol oleate in example 8, the adhesion level is basically similar, while the conductivity of the cable is increased from about 25% to 39% by adding the cleaning solution in example 3 and the adhesion level is reduced from 3 to 2, which means that the cable core is beneficial to improving the conductivity of the cable after being treated by the cleaning solution, and meanwhile, the insulating coating of the cable has good adhesion and is beneficial to improving the service life of the cable.
According to the data of examples 10-11 in Table 5, which are obtained by analysis with example 3, dimethylformamide is added to the cleaning solution of examples 10-11, the conductivity of the cable is increased from 39% to about 48%, the winding grade is reduced from 2 to 1, and the addition of dimethylformamide to the cleaning solution is beneficial to improving the conductivity of the cable and improving the toughness of the cable, so that the cable is not easy to wind, and therefore the cable is not easy to wind in the production process, and the production is more convenient.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. A light and insulating cable for new energy automobiles is characterized in that: the cable comprises a cable core and an insulating coating, wherein the cable core consists of a plurality of wire cores, the wire cores are made of aluminum alloy materials, the insulating coating is coated outside the cable core, and the insulating coating is a layer which grows on the surface of the cable core in situ and comprises alpha-Al 2 O 3 、γ-Al 2 O 3 The aluminum alloy material is a composite material of Al-rare earth elements, wherein the rare earth elements comprise La and Ce, and the La and Ce respectively account for 0.12-0.19% and 0.16-0.21% of the aluminum alloy material by mass percent;
the rare earth element also comprises 0.14% -0.22% Pr and 0.13% -0.19% Nd.
2. The light, insulated cable for new energy vehicles according to claim 1, wherein: the mass ratio of La to Ce in the aluminum alloy material is 2:1.
3. A method for preparing a light-weight, insulated cable for new energy automobiles according to any one of claims 1-2, which is characterized in that: the method comprises the following steps:
(1) And (3) batching: weighing Al, la, ce, pr and Nd serving as raw materials of the wire cores according to a formula;
(2) Smelting: adding raw materials into a smelting furnace, heating and melting, and smelting the raw materials to form an alloy solution;
(3) Forging: continuously casting, continuously binding and wiredrawing the alloy solution to obtain a blank, and forging and refining the blank after wiredrawing by using a forging mode;
(4) Preparing a wire core: twisting the refined wool into wire cores, and twisting a plurality of wire cores to obtain a cable core;
(5) And (3) treating cleaning liquid: the cleaning solution comprises the following raw materials in parts by mass: 2-5 parts of amino trimethylene phosphine, 6-9 parts of polyethylene glycol, 3-7 parts of polyethylene glycol oleate and 40-84 parts of water, and immersing the cable core into a cleaning solution for treatment;
(6) Electroplating: and (3) placing the cable core coated with the cleaning solution into electrolyte for chemical plating, so that an insulating coating is plated on the outer surface of the cable core, wherein the electrolyte is prepared from phosphoric acid aqueous solution, citric acid and ethylenediamine.
4. The method for manufacturing a light-weight and insulating cable for a new energy automobile according to claim 3, wherein the method comprises the following steps: the cleaning solution in the step (5) further comprises the following raw materials in parts by weight: 8-14 parts of dimethylformamide.
5. The method for manufacturing a light-weight and insulating cable for a new energy automobile according to claim 3, wherein the method comprises the following steps: the cleaning solution in the step (5) comprises the following raw materials in parts by weight: 3 parts of amino trimethylene phosphine, 8 parts of polyethylene glycol, 6 parts of polyethylene glycol oleate and 55 parts of water.
6. The method for manufacturing a light-weight, insulated cable for new energy automobiles according to any one of claims 3 to 5, characterized by: the temperature of the electrolyte in the step (5) is 30-35 ℃, and the electroplating time is 5-10min.
7. The method for manufacturing a light-weight, insulated cable for new energy automobiles according to any one of claims 3 to 5, characterized by: in the step (2), the temperature of the melting furnace is 1910-1980 ℃.
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